List all resources exposed by the connected MCP server.
AI agents call inspector_list_resources to retrieve information from Mcp Inspector without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
cursor | string | — | Pagination cursor from previous response (optional) |
session_id | string | Yes | Session ID returned by inspector_connect |
Parameters from the server's own tool schema.
This is a read-only operation that retrieves and displays available resources from a connected MCP server. It has no side effects, does not modify data, and does not trigger external operations. The blast radius of misuse is minimal—an agent could discover what resources exist but cannot act upon them without additional tools.
From the tool's definition Tool name and description indicate listing/querying resources: 'List all resources exposed by the connected MCP server.' No modification, deletion, or execution of external operations occurs.
Attacks that exploit this kind of access
List all resources exposed by the connected MCP server. It is categorised as a Read tool in the Mcp Inspector MCP Server, which means it retrieves data without modifying state.
inspector_list_resources accepts 2 parameters: cursor, session_id. Required: session_id. The full parameter table on this page comes from the server's own tool schema.
Register the Mcp Inspector MCP server in PolicyLayer and add a rule for inspector_list_resources: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Inspector. Nothing to install.
inspector_list_resources is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the inspector_list_resources rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for inspector_list_resources. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
inspector_list_resources is provided by the Mcp Inspector MCP server (@fre4x/mcp-inspector). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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